Key anatomic landmarks and structural relationships surgeons rely on during common operations.
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- What are the three boundaries of Calot's triangle (cystohepatic triangle)?
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Cystic duct, common hepatic duct, and inferior edge of the liver.- What key structure is typically found within Calot's triangle?
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The cystic artery.- Where is McBurney's point located?
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At the junction of the lateral and middle third of a line from the anterior superior iliac spine to the umbilicus.- What anatomic landmark marks the base of the appendix?
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The convergence of the three taeniae coli of the cecum.- What are the three boundaries of Hesselbach's triangle?
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Inferior epigastric vessels laterally, lateral border of the rectus sheath medially, and the inguinal ligament inferiorly.- A direct inguinal hernia passes through the abdominal wall in what relation to the inferior epigastric vessels?
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Medial to the inferior epigastric vessels.- An indirect inguinal hernia passes through the deep inguinal ring in what relation to the inferior epigastric vessels?
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Lateral to the inferior epigastric vessels.- What surgical landmark marks the duodenojejunal flexure?
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The ligament of Treitz.- What embryologic transition does the pectinate (dentate) line mark in the anal canal?
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The transition from hindgut endoderm above to ectoderm below.- What three structures make up the portal triad?
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The proper hepatic artery, portal vein, and common bile duct.- What is the Pringle maneuver?
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Temporary clamping of the hepatoduodenal ligament (portal triad) to control bleeding during liver surgery.- What structure forms the anterior boundary of the foramen of Winslow (epiploic foramen)?
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The hepatoduodenal ligament, which contains the portal triad.- What does the foramen of Winslow connect?
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The greater and lesser peritoneal sacs.- During laparoscopic inguinal hernia repair, what major vessels lie within the triangle of doom?
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The external iliac artery and vein.- During laparoscopic inguinal hernia repair, what nerves lie within the triangle of pain?
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The lateral femoral cutaneous nerve and the femoral branch of the genitofemoral nerve.
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